Palo Alto Warns of Active Exploitation of PAN-OS GlobalProtect VPN Flaw

Palo Alto Networks has revealed that it has observed “active exploitation” of a recently disclosed PAN-OS vulnerability by an unknown threat actor to obtain unauthorized access to GlobalProtect portals.

The vulnerability in question is CVE-2026-0257 (CVSS score: 7.8), an authentication bypass flaw affecting the portal and gateway components of PAN-OS software that could be exploited by bad

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